36144420240431 has 4 divisors (see below), whose sum is σ = 36246812366112. Its totient is φ = 36042028114752.

The previous prime is 36144420240419. The next prime is 36144420240433. The reversal of 36144420240431 is 13404202444163.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36144420240431 - 2¹⁸ = 36144419978287 is a prime.

It is a super-2 number, since 2×36144420240431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36144420240433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51196062311 + ... + 51196063016.

It is an arithmetic number, because the mean of its divisors is an integer number (9061703091528).

Almost surely, 2^{36144420240431} is an apocalyptic number.

36144420240431 is a deficient number, since it is larger than the sum of its proper divisors (102392125681).

36144420240431 is a wasteful number, since it uses less digits than its factorization.

36144420240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102392125680.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 36144420240431 its reverse (13404202444163), we get a palindrome (49548622684594).

The spelling of 36144420240431 in words is "thirty-six trillion, one hundred forty-four billion, four hundred twenty million, two hundred forty thousand, four hundred thirty-one".